The two-time champion at Flushing Meadows will face Joao Sousa in the fourth round on Monday after the unseeded Portuguese won three tiebreakers in his , , , victory over 17th-seeded Frenchman Lucas Pouille.

An out-of-sorts Alexander Zverev made another first-week exit in New York after losing a fierce third round battle of wills with compatriot Philipp Kohlschreiber.

After winning the first set there was little fourth-seeded Zverev could do to stop an inspired Kohlschreiber, who won , , , The versatile year-old showed none of the mental fragility that has dogged him in the past, recovering well after being trounced in the first set tiebreaker to set up a last 16 meeting with Japan's Kei Nishikori, the 21st seed.

Zverev teamed up with Ivan Lendl before the tournament in New York, bringing the eight-times grand slam champion on to his coaching staff in an attempt to take the next step in his career.

I think the results will come next year. Zverev committed 53 unforced errors, including some double faults at critical moments, as Kohlschreiber reached the fourth round for the fifth time in his career.

Nishikori, the runner-up at Flushing Meadows, overcame Argentine 13th seed Diego Schwartzman , , , In the women's draw, Angelique Kerber joined the list of favourites to be bundled out of the tournament while Maria Sharapova advanced.

Wimbledon champion Kerber was another single-digit seed eliminated in the first week after , , defeat to Dominika Cibulkova - leaving none of this year's grand slam winners left in the women's draw.

Only one of the top-four seeds on the women's side remain in the last 32 - defending champion and third seed Sloane Stephens.

Sharapova continued to enjoy working the night shift with a , win over Ostapenko, improving her record to under the Arthur Ashe Stadium floodlights.

Sharapova cashed in on Ostapenko's struggling serve and broke seven times to set up a meeting with Spanish 30th seed Carla Suarez-Navarro, a , , winner over Frenchwoman Garcia.

Kvitova was no match for in-form Aryna Sabalenka in the final third-round match, the Belarusian dropping just one point on serve in the second set of her victory.

The reward for the 26th seed is a clash with Japanese 20th seed Naomi Osaka, who needed just 50 minutes to sweep aside Aliaksandra Sasnovich , Angelique Kerber overcame a bad back and a mid-match wobble to record her first win at the WTA Finals.

After an opening loss, Kerber needed to beat the US Open winner to stay alive in the season-ending tournament. Click here for the latest Bundesliga results and the current league standings.

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Kerber and Zverev beat the heat to reach round two Angelique Kerber brushed off scorching temperatures and an early wobble to beat Russia's Margarita Gasparyan and reach the second round of the US Open.

The year-old Zverev is considered a rising star of men's tennis. He already has won three Masters titles in his career and leads the tour with 45 wins this season.

But he has only one Grand Slam quarterfinal appearance so far, at this year's French Open, and he's now at the U. In four appearances at Flushing Meadows, he has one loss in the first round, two in the second, and one in the third.

Althea Gibson will be permanently honored with a monument on the grounds of the National Tennis Center next year.

Adams says Gibson is an icon in the sport, someone who "was truly diverse in her own thinking and her abilities.

USTA spokesman Chris Widmaier says the location for the statue has not been finalized and artist renderings are unavailable because Goulder "is still in the creative process.

Open and , and Wimbledon and Naomi Osaka swept her way into the fourth round of the U. Open for the first time, beating Aliaksandra Sasnovich , Osaka has reached at least the third round in six straight Grand Slam tournaments, the longest current streak on tour.

She lost in that round in Flushing Meadows the last two years. Roger Federer's 51 winners included one jaw-dropping flick around the net post and he got through a tough early spot to get past Nick Kyrgios , , and reach the fourth round in a 17th consecutive U.

The outcome might very well have been decided with Federer serving at 3-all, love, less than 20 minutes in. He saved four break points in that game — and then never faced another.

In the 30th-seeded Kyrgios' previous match, the chair umpire climbed down from his seat to have a chat with the Australian's seeming lack of effort.

There was no such visit during this match. Open trophy arrived a decade ago. He'll face 55th-ranked John Millman of Australia next.

It's the first time Millman has reached the fourth round at any major tournament. Wimbledon champion Angelique Kerber has been eliminated, leaving none of this year's Grand Slam winners left in the U.

Top-ranked Simona Halep, the French Open champion, was eliminated in the first round. Australian Open champion Caroline Wozniacki, the No. Madison Keys rallied after dropping the first set and the U.

Open finalist from a year ago beat Aleksandra Krunic , , Keys lost to Sloane Stephens in the final last year and lost to her again this year in the French Open semis.

But Keys has been plagued with injuries for most of the season and slipped out of the top 10 in the rankings.